Answer:
A.
He forced the surrender of Japan without a ground invasion.
I believe it would have to be the light bulb that destroyed the first market for petroleum.
Hope it helps if I'm right!
<span>James K. Polk’s intentions were clear from the start his famous campaign slogan, “54-40 or Fight!” indicated his intention to settle the status of the Oregon Territory with Great Britain on American terms. American naval forces arrived in Monterrey and took control of the port without firing a shot and tack over under Commodore Robert F. Stockton to capture San Francisco, San Diego, and Los Angeles without bloodshed.</span>
It was a hard life for them.They tried to fit in and make life easier but that wasn't happening. They had so many battles to fight and fears to over come.But one thing for sure is that they never let each other down and they always stood but each others sides.
Option B is the right answer.
Darius is known as the King of the Persian empire. He became furious with the city-states of Greece because Athens (Greek city-state) tied up with other states to revolt against Persian rule. His anger led him to launch an armed force to defeat the Athenians. He thought his action of sending the army on the land of Athens would destroy the rebellious part of the empire. But the situation changed and the army of Darius was soon defeated in the hand of the Greek city-state in 490 B.C.